SkillCannon

The Curated Agent Skills Marketplace

Not a scraped mega-catalog. Every skill here is hand-picked for SaaS and product teams and checked for cross-agent compatibility across Claude Code, Codex, and OpenCode. Quality over quantity.

Engineering

  • Matt Pocock's Skills

    Top pick

    A composable set of engineering skills from Matt Pocock for real software work: grilling sessions, domain modeling, TDD, bug diagnosis, and codebase design.

    • Claude Code: Works
    • Codex: Works
    • OpenCode: Caveats. OpenCode is not in the skills.sh installer list, but it reads .claude/skills and .agents/skills, so install there or copy the folders in. The user-invocation flag is ignored, so user-invoked skills become model-invocable.
    Read the full take

Marketing

  • Agentic SEO Skill

    Top pick

    Deterministic, LLM-first SEO and GEO audits for sites, blogs, and repos, with script-backed evidence and prioritized, confidence-labeled fixes.

    • Claude Code: Works
    • Codex: Works
    • OpenCode: Unverified
    Read the full take

Operations

  • n8n Skills

    Top pick

    Seven skills that teach coding agents to build production-ready n8n workflows via the n8n-mcp server, from expression syntax to validation loops.

    • Claude Code: Works
    • Codex: Caveats. No plugin install. Copy the SKILL.md folders into .agents/skills and configure the n8n-mcp MCP server manually.
    • OpenCode: Caveats. No plugin install. Drop the SKILL.md folders into .claude/skills or .agents/skills and configure the n8n-mcp MCP server.
    Read the full take